restructure: flatten project, add ARCHITECTURE.md, update DEVY.md

- Moved from session-analytics-web/ subfolder to root
- Renamed to token-analytics
- Added deploy.sh, ARCHITECTURE.md
- Moved export.mjs into jsonl-sync/

wwwroot/index.html

@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html lang="de">
+<head>
+  <meta charset="UTF-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+  <title>Token Analytics</title>
+  <link rel="stylesheet" href="style.css" />
+</head>
+<body>
+  <header>
+    <h1>Cost Analytics</h1>
+    <div id="summary"></div>
+    <button id="btn-sync" title="Neue Einträge importieren">↻ Sync</button>
+  </header>
+
+  <div id="toolbar">
+    <button id="btn-zoom-out" disabled>← Raus-Zoomen</button>
+    <span id="range-label"></span>
+  </div>
+
+  <div id="chart-area">
+    <div id="chart"></div>
+    <div id="chart-labels"></div>
+  </div>
+
+  <div id="content">
+    <div id="blocks"></div>
+  </div>
+
+  <div id="modal" class="modal hidden">
+    <div class="modal-box">
+      <button id="modal-close">✕</button>
+      <div id="modal-chain"></div>
+      <details class="raw-json">
+        <summary>Raw JSON</summary>
+        <pre id="modal-content"></pre>
+      </details>
+    </div>
+  </div>
+
+  <script src="app.js"></script>
+</body>
+</html>